Burner structure used for a portable gas cooking stove

Abstract

There is provided a burner structure used for a portable gas cooking stove, including a mixing tube with an open end from which a mixture gas of a combustible gas and air is discharged, a burner head with a predetermined volume, an open bottom surface, and a top surface with at least one opening, an inner cup having a size that enables the inner cup to be housed in the burner head, and an open bottom surface, and a bottom plate with a through-hole through which the mixing tube can be inserted, covering the open bottom surface of the burner head, wherein the inner cup is installed inside the burner head in such a manner that an inner surface of the inner cup faces the mixing tube, and the mixing tube is installed on the bottom plate so that the open end is positioned higher than a bottom surface of the inner cup. The burner structure decreases the flow rate of the gas mixture before the gas is discharged out of the burner structure, and when the gas is discharged out of the burner structure, the flow rate of the gas is substantially the same as the normal combustion rate. Therefore, the burner structure for a portable gas cooking stove can effectively prevent the occurrence of lift that may take place if the flow of the gas mixture is excessive, so all the gas mixture can be burned completely.

What is claimed is: 
     
       1. A burner structure used for a portable gas cooking stove, comprising: a mixing tube with an open end from which a mixture gas of a combustible gas and air is discharged;   a burner head with a predetermined volume, an open bottom surface, and a top surface with at least one opening;   an inner cup having a size that enables said inner cup to be housed in said burner head, and an open bottom surface; and   a bottom plate with a through-hole through which said mixing tube can be inserted, covering said open bottom surface of said burner head,   wherein said inner cup is installed inside said burner head in such a manner that an inner surface of said inner cup faces said mixing tube, and   said mixing tube is installed on said bottom plate so that an open end thereof is positioned higher than a bottom of said inner cup.   
     
     
       2. The burner structure as set forth in claim 1, wherein said inner cup is installed in such a manner that a lower edge thereof is lower than a bottom of said opening. 
     
     
       3. The burner structure as set forth in claim 1, wherein said opening comprises a plurality of elongate holes extending in a height-wise direction of said burner head. 
     
     
       4. The burner structure as set forth in claim 1, further comprising a mesh-like net placed across at said opening. 
     
     
       5. The burner structure as set forth in claim 1, wherein said burner head is formed substantially in the shape of a truncated cone. 
     
     
       6. The burner structure as set forth in claim 1, wherein said inner cup is formed in a hemispherical shape. 
     
     
       7. The burner structure as set forth in claim 2, wherein said opening comprises a plurality of elongate holes extending in a height-wise direction of said burner head. 
     
     
       8. The burner structure as set forth in claim 2, further comprising a mesh-like net placed across at said opening. 
     
     
       9. The burner structure as set forth in claim 2, wherein said burner head is formed substantially in the shape of a truncated cone. 
     
     
       10. The burner structure as set forth in claim 2, wherein said inner cup is formed in a hemispherical shape.